But imagine an indicator app of some sort on a tablet. Is communication great? Sure. But convenience is easier to implement. Less room for human error or worse, apathy to the system or total neglect. “Scareactor capacity just dropped below 85%, let’s hold the line….okay, it reached 95%, come on through.” And it’s trainable and easier to supervise. “You let people in when the indicator was at 50%, never do that again.” Or “hey folks, we have a lot of scareactors out today, let’s go ahead and set 75% as our total cap number, so even 65% will work for today.” It can change daily, hourly, or even moment to moment. “Guys the line reached three hours, let’s just push people through and hope for the best to slim it down.” An automated message board with status updates would be great too. “STOP LETTING IN EXPRESS, THEY CAN WAIT FOR 5 MINS.”